Electric trolley.



No. 896,189. PATENTED AUG? 18, 1908.

J. YOUNG. ELECTRIC TROLLEY.

APPLICATION FILED APR. 29, 1903.

JOHN YOUNG, OFTOLEDO, orno. I

' ELECTRIC TROLLEY.

Specification of Letters Patent.

Patented Aug. 18, 1908.

Application filed April 29, 1908. Serial No. 429,921.

To all whom it may concern:

Be it known that I, JOHN YOUNG, a citizen of the United States, residing 'at Toledo, in

the county of Lucasand Stateof Ohio, have invented "certainnew and useful Improvements in Electric Trolleys; and I do hereby declare the following to be a full, clear, and exact description of the. invention, such as will enable others skilled in the art to which it a pertains to make and use the same.

his invention relates to rolling trolley contacts for use onelectrically propelled vehicles, and a particular object of the invention is to provide a device of this character in which friction and wear are reduced to a minimum.

The invention embodies certain novel features of construction and the arrangement of the parts hereinafter shown, described and claimed.

In the accompanying drawings, Figurel. is a side elevation of a rolling trolley contact constructed in accordance with my inven tion; Fig. 2 is a like view with half of the inclosing case for the contact ring removed;

' Fip 3 is a vertical section on line ac-w, Fig. 2.

eferring to the details, l is a forked harp fixed at the free end of a trolley pole and between the arms of the harp is eccentricnlly mounted so as to swine freely by gravity, a case 2 constructed of like half sections sooured together at the margin by screws 3 or other-suitable fastening means. The general form of the case is a hollow disk, open at the top, at 4, and near the top margin between the side walls of the case are mounted rollers 5 and 6 rotatable upon ins 7 and 8 the ends of which are supportm in the case. 9 is a grooved contactring adapted to roll along the trolley conductor 10, the same being preferably constructed of brass with an inner face 11 of a harder metal, such as steel or chilled cast iron, and adapted to roll in contact with the faces of the rollers 5 and (S.

Suitably supported within the case between its sides to underlie and partially surround the'rollers 5 and 6 is a basket or lubricating chamber '12 adapted to hold waste or other suitable absorbent material saturated with oil, or, powdered graphite and oil may be laced in the chamber 12 to lubricate the rol ers and their bearing surfaces' As shown in Fig. 2, the chamber12 is held in place between the sides of the case by suitable projecting lugs on the inner walls of the case, although other means may be.em{ployed to support a lubricating chamber at iacent to the rollers. To assistin suspending the case in a true vertical direction from the forked har the lower portion 14 of the case is mace excessively heavy by' increasing the thickness of the metal walls. it is thus observed that when the device is in operation, the annular contact ring will bear upon the two rollers mounted in the ease, and with the provision for lubricating the rollers the frietion and wear between the faces in rolling contact will be reduced to a minimum.

Having described my invention, what I claim and desire to secure by'Letters Pat-'70 out, is

1, In an electric trolley, the combination with a forked bar ,of an eccentrically mounted case suspended from the harp, rollers mounted in the'case, and an annular-contact ring rotatable upon the rollers.

2. In an electric trolley, the combination with a forked harp, of an eccentrically mounted case suspended from the harp and having a ireponderance of weight at its lower end, rollers mounted in the case, a chamber containing lubricant supported by the case ad-' jacent to the rollers, and an annular contact ring rotatable upon the rollers.

In testimony whereof, I hereunto afiix' myt signature, in presence of two witnesses;

JOHN YOUNG.

\Vitnesses: i

(Emu; ll. KELLER, GRANT WiLLiAMs. 

